apport information ** Description changed:
ubuntu-bug linux was run from the affected system while reproducing the problem, so Apport diagnostic information may already have been uploaded separately. HP ZBook X G1i: HP Thunderbolt Dock G2 JHL7540 xHCI controller dies during cold boot but works when hot-plugged after boot Summary On an HP ZBook X G1i 16-inch Mobile Workstation running Ubuntu 24.04, an HP Thunderbolt Dock G2 works correctly when connected after Ubuntu has finished booting, but its USB controller consistently dies during boot if the dock is already connected when the system starts. DisplayPort output from the dock continues to work, but USB devices and Ethernet attached through the dock do not appear. The affected PCI device is: Intel JHL7540 Thunderbolt 3 USB Controller [Titan Ridge 4C 2018] PCI ID: 8086:15ec Subsystem: HP 103c:0467 The kernel binds xhci_hcd to the device, starts the USB buses, and then reports: xhci_hcd 0000:05:00.0: xHCI host controller not responding, assume dead xhci_hcd 0000:05:00.0: HC died; cleaning up Hardware Laptop: HP ZBook X G1i 16 inch Mobile Workstation PC CPU: Intel Core Ultra 9 285H Dock: HP Thunderbolt Dock G2 Thunderbolt 3 Dock firmware reported by fwupd: 66.00 Dock USB controller: Intel JHL7540 Thunderbolt 3 USB Controller 8086:15ec Subsystem 103c:0467 System BIOS: HP X97 Ver. 01.05.03 USB4 retimer firmware: 26.85 Ubuntu release: Ubuntu 24.04 Kernels tested The problem reproduces identically with: 7.0.0-28-generic 6.17.0-40-generic Therefore it does not appear specific to the 7.0 kernel. Steps to reproduce Connect the HP Thunderbolt Dock G2 to the ZBook. Leave USB mouse, keyboard, and Ethernet connected to the dock. Boot Ubuntu with the dock already physically connected. Log in. Observe that the monitor connected through the dock works. Observe that keyboard, mouse, and Ethernet through the dock do not work. Run: sudo dmesg | grep -iE 'xhci|thunderbolt|usb|05:00.0' Actual result During boot, PCI device 0000:05:00.0 is discovered and xhci_hcd starts normally: pci 0000:05:00.0: [8086:15ec] type 00 class 0x0c0330 PCIe Endpoint xhci_hcd 0000:05:00.0: xHCI Host Controller xhci_hcd 0000:05:00.0: new USB bus registered xhci_hcd 0000:05:00.0: Host supports USB 3.1 Enhanced SuperSpeed Shortly afterward: xhci_hcd 0000:05:00.0: xHCI host controller not responding, assume dead xhci_hcd 0000:05:00.0: HC died; cleaning up The downstream dock USB hubs, keyboard, mouse, audio, and Realtek RTL8153 Ethernet controller therefore do not enumerate. After the failure, the PCI device remains present and reports D0 / runtime active, but memory decoding, bus mastering, and MSI are disabled following the xHCI failure. Expected result The Thunderbolt Dock G2 should initialize during boot in the same way it does when physically connected after Ubuntu has finished booting. USB mouse, keyboard, Ethernet, audio, and other dock USB devices should enumerate normally. Important comparison: hot-plug works If Ubuntu is booted with the dock physically disconnected, and the same dock is connected after login, everything works. During successful hot-plug, the sequence is: thunderbolt 0-1: new device found, vendor=0xf0 device=0x467 thunderbolt 0-1: HP Thunderbolt Dock G2 pci 0000:05:00.0: [8086:15ec] type 00 class 0x0c0330 PCIe Endpoint pci 0000:05:00.0: BAR 0 [mem 0x8c000000-0x8c00ffff]: assigned pci 0000:05:00.0: enabling device xhci_hcd 0000:05:00.0: xHCI Host Controller The downstream USB hierarchy then enumerates successfully, including: 2109:2820 VIA Labs VL820 USB 2 hub 2109:0820 VIA Labs VL820 USB 3 hub 0424:2807 Microchip USB hub 0424:5807 Microchip USB hub 046d:c52b Logitech Unifying Receiver 046d:c31c Logitech keyboard 03f0:0269 HP USB Audio 03f0:0667 HP/Cypress device 0bda:8153 Realtek RTL8153 Gigabit Ethernet Mouse, keyboard, audio, and Ethernet all work normally in this state. Thunderbolt authorization / DMA protection Thunderbolt authorization was investigated separately. BIOS DMA Protection is currently enabled for Thunderbolt devices. Both Thunderbolt domains report: iommu_dma_protection = 1 The connected G2 dock is enrolled with boltd and automatically shows status "authorized". The Thunderbolt link reports 40 Gb/s in both directions. Therefore the failure still occurs with Thunderbolt authorization and IOMMU DMA protection functioning normally. Additional testing The following tests did NOT resolve the failure: Updating system BIOS from HP X97 01.04.03 to X97 01.05.03. Booting Linux 6.17.0-40-generic instead of 7.0.0-28-generic. Testing with intel_iommu=off. PCI remove/rescan of 0000:05:00.0. Thunderbolt device deauthorization and reauthorization. PCI remove/rescan produces: pci 0000:05:00.0: xHCI HW not ready after 5 sec (HC bug?) status = 0xffffffff xhci_hcd 0000:05:00.0: Host halt failed, -19 xhci_hcd 0000:05:00.0: can't setup: -19 xhci_hcd 0000:05:00.0: init 0000:05:00.0 fail, -19 Deauthorizing and reauthorizing the Thunderbolt device does not remove/reset the 05:00.0 PCI endpoint deeply enough to recover it. Only physically disconnecting the dock and reconnecting it after Ubuntu is running successfully resets/reinitializes the JHL7540 xHCI controller. Other observations During a successful hot-plug, 0000:05:00.0 reports: Power state: D0 MSI: enabled Mem+ BusMaster+ Kernel driver in use: xhci_hcd PCIe link: Speed 2.5GT/s Width x4 No AER errors are reported. During the failed cold-boot state, the PCI endpoint remains visible but after the xHCI driver cleanup it shows: Mem- BusMaster- MSI disabled The physical Thunderbolt link itself remains connected/authorized. Workaround Boot Ubuntu with the HP Thunderbolt Dock G2 physically disconnected. After Ubuntu finishes booting, connect the Thunderbolt cable. The dock then works normally. Suspected area This appears to be a cold-boot initialization / reset / sequencing issue involving the Intel JHL7540 Titan Ridge xHCI endpoint behind the Thunderbolt PCIe tunnel on the HP ZBook X G1i USB4/Thunderbolt platform. The same controller works correctly when the Thunderbolt tunnel and PCI device are created dynamically after the OS is fully running. --- ProblemType: Bug ApportVersion: 2.28.3-0ubuntu0.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: [email protected] 3432 F.... pipewire [email protected] 3437 F.... wireplumber /dev/snd/controlC0: [email protected] 3437 F.... wireplumber /dev/snd/seq: [email protected] 3432 F.... pipewire CRDA: N/A CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 24.04 InstallationDate: Installed on 2026-07-16 (28 days ago) InstallationMedia: Ubuntu 24.04.4 LTS "Noble Numbat" - Release amd64 (20260210) MachineType: HP HP ZBook X G1i 16 inch Mobile Workstation PC Package: linux (not installed) ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-28-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro pcie_aspm=off quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 7.0.0-28.28~24.04.1-generic 7.0.12 RelatedPackageVersions: linux-restricted-modules-7.0.0-28-generic N/A linux-backports-modules-7.0.0-28-generic N/A linux-firmware 20240318.git3b128b60-0ubuntu2.29 Tags: noble wayland-session Uname: Linux 7.0.0-28-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm audio cdrom dip lpadmin lxd netdev plugdev sudo users video _MarkForUpload: True dmi.bios.date: 05/04/2026 dmi.bios.release: 5.3 dmi.bios.vendor: HP dmi.bios.version: X97 Ver. 01.05.03 dmi.board.name: 8E1D dmi.board.vendor: HP dmi.board.version: KBC Version 63.24.00 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.ec.firmware.release: 99.36 dmi.modalias: dmi:bvnHP:bvrX97Ver.01.05.03:bd05/04/2026:br5.3:efr99.36:svnHP:pnHPZBookXG1i16inchMobileWorkstationPC:pvrSBKPFV3:rvnHP:rn8E1D:rvrKBCVersion63.24.00:cvnHP:ct10:cvr:skuC44ZLUA#ABA:pfa103C_5336ANHPZBook: dmi.product.family: 103C_5336AN HP ZBook dmi.product.name: HP ZBook X G1i 16 inch Mobile Workstation PC dmi.product.sku: C44ZLUA#ABA dmi.product.version: SBKPFV3 dmi.sys.vendor: HP + --- + ProblemType: Bug + ApportVersion: 2.28.3-0ubuntu0.1 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC1: [email protected] 3368 F.... pipewire + [email protected] 3371 F.... wireplumber + /dev/snd/controlC0: [email protected] 3371 F.... wireplumber + /dev/snd/seq: [email protected] 3368 F.... pipewire + CRDA: N/A + CasperMD5CheckResult: unknown + CurrentDesktop: ubuntu:GNOME + DistroRelease: Ubuntu 24.04 + InstallationDate: Installed on 2026-07-16 (28 days ago) + InstallationMedia: Ubuntu 24.04.4 LTS "Noble Numbat" - Release amd64 (20260210) + MachineType: HP HP ZBook X G1i 16 inch Mobile Workstation PC + Package: linux (not installed) + ProcEnviron: + LANG=en_US.UTF-8 + PATH=(custom, no user) + SHELL=/bin/bash + TERM=xterm-256color + ProcFB: 0 i915drmfb + ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-28-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro pcie_aspm=off quiet splash vt.handoff=7 + ProcVersionSignature: Ubuntu 7.0.0-28.28~24.04.1-generic 7.0.12 + RelatedPackageVersions: + linux-restricted-modules-7.0.0-28-generic N/A + linux-backports-modules-7.0.0-28-generic N/A + linux-firmware 20240318.git3b128b60-0ubuntu2.29 + Tags: noble + Uname: Linux 7.0.0-28-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: N/A + _MarkForUpload: True + dmi.bios.date: 05/04/2026 + dmi.bios.release: 5.3 + dmi.bios.vendor: HP + dmi.bios.version: X97 Ver. 01.05.03 + dmi.board.name: 8E1D + dmi.board.vendor: HP + dmi.board.version: KBC Version 63.24.00 + dmi.chassis.type: 10 + dmi.chassis.vendor: HP + dmi.ec.firmware.release: 99.36 + dmi.modalias: dmi:bvnHP:bvrX97Ver.01.05.03:bd05/04/2026:br5.3:efr99.36:svnHP:pnHPZBookXG1i16inchMobileWorkstationPC:pvrSBKPFV3:rvnHP:rn8E1D:rvrKBCVersion63.24.00:cvnHP:ct10:cvr:skuC44ZLUA#ABA:pfa103C_5336ANHPZBook: + dmi.product.family: 103C_5336AN HP ZBook + dmi.product.name: HP ZBook X G1i 16 inch Mobile Workstation PC + dmi.product.sku: C44ZLUA#ABA + dmi.product.version: SBKPFV3 + dmi.sys.vendor: HP ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/2163288/+attachment/5991832/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2163288 Title: HP ZBook X G1i: JHL7540 xHCI dies when Thunderbolt Dock G2 is connected during boot; hot-plug works To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2163288/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
